Department of Surgery and Integrated Clinic, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil.
J Prosthet Dent. 2012 Nov;108(5):298-303. doi: 10.1016/S0022-3913(12)60180-2.
Noncarious cervical lesions (NCCLs) are a frequent challenge in clinical dental practice, given the variety of opinions regarding their etiology, diagnosis, and treatment.
The purpose of this study was to assess the potential relationship between occlusal forces and the occurrence of NCCLs.
The participant population consisted of 111 volunteers (30 male and 81 female, mean age 23.6 years). General personal information was recorded, after which participants were examined for the presence and location of NCCLs, gingival recession, fracture lines, dental and restoration fractures, presence and location of tooth wear, type of occlusal guidance scheme for lateral mandibular movements, and existence of occlusal interference or premature contacts. The participants were divided according to the presence or absence of NCCLs, and data were statistically analyzed with the Independent t test, the Chi-square test, and the Fisher exact test (α=.05).
A significant association was found between the presence of NCCLs and age (P=.008), gingival recession (P<.001), occlusal trauma (P<.001), presence (P<.001) and location of tooth wear, and group function as occlusal guidance scheme in lateral excursive movements (P<.001).
A strong relationship between the presence of NCCLs and occlusal overload was found.
非龋性颈领病变（NCCLs）是临床牙科实践中的一个常见难题，因为人们对其病因、诊断和治疗存在多种观点。
本研究旨在评估咬合力与 NCCLs 发生之间的潜在关系。
研究对象为 111 名志愿者（30 名男性和 81 名女性，平均年龄 23.6 岁）。记录了一般个人信息，然后检查志愿者是否存在 NCCLs、牙龈退缩、骨折线、牙和修复体骨折、牙齿磨损的存在和位置、下颌侧向运动的咬合引导方案类型，以及是否存在咬合干扰或早接触。根据是否存在 NCCLs 将参与者进行分组，使用独立 t 检验、卡方检验和 Fisher 确切检验（α=.05）对数据进行统计学分析。
NCCLs 的存在与年龄（P=.008）、牙龈退缩（P<.001）、咬合创伤（P<.001）、牙齿磨损的存在（P<.001）和位置、以及侧向运动的组功能（P<.001）之间存在显著关联。
NCCLs 的存在与咬合过载之间存在很强的关系。
